# hydrographic

/ˌhaɪdɹəˈɡɹæfɪk/ (US) · /hˌaɪdɹəɡɹˈæfɪk/ (UK) · CEFR C2 · Adjective

Source: https://englishreference.com/word/hydrographic
Updated: 2026-10-14

## Definition

connected with measuring and mapping seas, rivers, lakes and coasts. You see it in phrases like hydrographic survey and hydrographic chart.

For teachers: Relating to hydrography, the measurement and charting of seas, rivers, lakes and coastal waters, especially for safe navigation. Often appears in collocations such as 'hydrographic survey' or 'hydrographic chart'.

## Examples

- They use hydrographic maps to sail safely.
- The team carries out a hydrographic survey to map the depth of the harbour before the new ferry starts.
- Accurate hydrographic data underpins safe navigation, coastal planning and climate research, especially as rising sea levels reshape shorelines once considered stable.

## Synonyms

hydrographical

## Usage notes

- Typically placed before the noun it modifies, as in 'hydrographic chart' or 'hydrographic survey'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.